package com.atguigu.base;

import java.util.concurrent.TimeUnit;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;

public class SyncVSLockDemo {
    public synchronized void m1(){
      System.out.println(Thread.currentThread().getName()+"---come in");
            //暂停几秒钟线程
            try{
                TimeUnit.SECONDS.sleep(4);
            }catch(InterruptedException e){
                e.printStackTrace();
            }
        }

        private final Lock lock = new ReentrantLock();
        public void m2(){
            if(lock.tryLock()){
                try{
                    System.out.println(Thread.currentThread().getName()+"---come in");
                    //暂停几秒钟线程
                    try{
                        TimeUnit.SECONDS.sleep(3);}catch(InterruptedException e){e.printStackTrace();}
                } finally {
                    lock.unlock();
                }
            }else{
            System.out.println(Thread.currentThread().getName()+"---come out");
            }
        }

    private void m3() {
        try {
            if (lock.tryLock(2L, TimeUnit.SECONDS)) {
                try {
                    System.out.println(Thread.currentThread().getName() + "---come in");
                    //暂停几秒钟线程
                    try {
                        TimeUnit.SECONDS.sleep(1);
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                } finally {
                    lock.unlock();
                }
            } else {
                System.out.println(Thread.currentThread().getName() + "---超时超过2s ,come out");
            }
        } catch (InterruptedException e) {
            throw new RuntimeException(e);
        }
    }

public static void main(String[] args) {
    SyncVSLockDemo syncVSLockDemo = new SyncVSLockDemo();
    new Thread(()->{syncVSLockDemo.m3();},"t1").start();
    new Thread(()->{syncVSLockDemo.m3();},"t2").start();
    }
}
